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A Thomas McLellan, PhD

Betty Ford Center
Joined: 05/04/2011
Expert Profile:
Betty Ford Center Board of Directors member A. Thomas McLellan, Ph.D., Professor, Department of Psychiatry and Director, Penn Center for Substance Abuse Solutions, is the former Deputy Director of the Office of National Drug Control Policy (ONDCP) in the White House. He was the principal developer of the Addiction Severity Index (ASI) and the Treatment Services Review (TSR), measurement instruments that characterize the multiple dimensions of substance abusing patients and treatment protocols. He received his B.A. from Colgate University and his M.S. and Ph.D. from Bryn Mawr College. He received postgraduate training in psychology at Oxford University.

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